diff --git a/admin_manual/release_notes.rst b/admin_manual/release_notes.rst
index c4df430f4..4883ba98b 100644
--- a/admin_manual/release_notes.rst
+++ b/admin_manual/release_notes.rst
@@ -79,6 +79,8 @@ Previews are now generated at a maximum size of 2048 x 2048 pixels. This is conf
 
 The ownCloud 8 server is not supported on any version of Windows.
 
+The 8.1.0 release has a minor bug which makes app updates fail at first try. Trying again will succeed.
+
 Enterprise 8.1 Only
 -------------------